Karl Heisler, 19, of Nottingham Way, admitted he intentionally burned down Vincent's Pizza in May 2010

HAMILTON — Prosecutors yesterday abruptly rescinded a plea deal that would have put a teen in prison for seven years for torching a township pizzeria and a host of other crimes that he committed last year.

A spokeswoman for the prosecutor’s office said the deal offered to 19-year-old admitted arsonist Karl Heisler was “too lenient” and had not been pre-approved by top officials in the office.

“The offer was inappropriate based on the severity of the crimes, the number of charges and the number of victims in the case,” said spokeswoman Casey DeBlasio. Heisler, of Nottingham Way, admitted he intentionally burned down Vincent’s Pizza in May 2010 and set fire to rolls of carpeting inside Siperstein’s Paint Store last fall. He also admitted to burglarizing a home and car on Foreman Road last year and stealing a car from J&S Auto Hause before leaving it on the train tracks to be hit by an oncoming train.

Under the terms of the deal Heisler accepted in April, he would have gotten seven years in prison for each of the aggravated arson charges and three years in prison for each of the other crimes. The sentences would have run concurrently with Heisler being required to serve 85 percent of his term before becoming eligible for parole.

But as Heisler appeared in court for sentencing yesterday, Assistant Prosecutor Alvin McGowan announced that the state wanted to withdraw the plea deal. Superior Court Judge Gerald Council told McGowan to submit a brief supporting his request to withdraw the plea.

The matter will be heard again on Oct. 7. Defense attorney Diane Lyons said the deal should stand.

“He’s a troubled guy,” she said of her client. “I think this sentence is fair.”